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2. Radio masts and towers - Wikipedia

   en.wikipedia.org/wiki/Radio_masts_and_towers

   The antenna used for broadcasting through the 1920s was the T-antenna, which consisted of two masts with loading wires on top, strung between them, requiring twice the construction costs and land area of a single mast. [2] (pp 77–78) In 1924 Stuart Ballantine published two historic papers which led to the development of the single mast antenna.

3. List of tallest structures in the United States by height

   en.wikipedia.org/wiki/List_of_tallest_structures...

   Guyed Mast 491 m WJJY TV Mast: Bluffs, Illinois: Guyed Mast destroyed in 1978 491 m Media General Tower Jackson Jackson, Mississippi: Guyed Mast 491 m WHNS TV-Tower: Brevard, North Carolina: Guyed Mast 490.7 m KOBR-TV Tower: Caprock, New Mexico: Guyed Mast 490.2 m Joint Venture TV Tower Bithlo Bithlo, Florida: Guyed Mast 489.2 m American Towers ...

4. Tower Mounted Amplifier - Wikipedia

   en.wikipedia.org/wiki/Tower_Mounted_Amplifier

   A Tower Mounted Amplifier (TMA), or Mast Head Amplifier (MHA), is a low-noise amplifier (LNA) mounted as close as practical to the antenna in mobile masts or base transceiver stations. A TMA reduces the base transceiver station noise figure (NF) and therefore improves its overall sensitivity ; in other words the mobile mast is able to receive ...

5. KVLY-TV mast - Wikipedia

   en.wikipedia.org/wiki/KVLY-TV_mast

   Completed in 1963, it was once the tallest structure in the world, and stood at 2,063 feet (629 meters) until 2019, when the top mount VHF antenna was removed for the FCC spectrum repack, dropping the height to 1,987 feet (605.6 m). [1] In 1974, the KVLY-TV mast was succeeded by the Warsaw radio mast as the world's

6. Mast radiator - Wikipedia

   en.wikipedia.org/wiki/Mast_radiator

   An ideal monopole antenna radiates maximum power in horizontal directions at a height of 225 electrical degrees, about ⁠ 5 / 8 ⁠ or 0.625 of a wavelength (this is an approximation valid for a typical finite thickness mast; for an infinitely thin mast the maximum occurs at / = 0.637 [6]) As shown in the diagram, at heights below a half ...

7. List of tallest structures in the United States - Wikipedia

   en.wikipedia.org/wiki/List_of_tallest_structures...

   From 1974 until its collapse in 1991, the Warsaw radio mast in Poland also eclipsed the KVLY-TV mast. This tower is used so KVLY-TV can cover both Fargo and Grand Forks. In 2019, the top mount antenna was removed, dropping the overall height to 1,987 ft (605.6 m) [8] KRDK-TV Television Tower (Fargo/Valley City CBS 4) Height: 2,060 ft (628 m)

8. Television antenna - Wikipedia

   en.wikipedia.org/wiki/Television_antenna

   A short antenna pole next to a house Multiple Yagi TV aerials. Antennas are commonly placed on rooftops and sometimes in attics. Placing an antenna indoors significantly attenuates the level of the available signal. [19] [20] Directional antennas must be pointed at the transmitter they are receiving; in most cases great accuracy is not needed ...

9. Guyed mast - Wikipedia

   en.wikipedia.org/wiki/Guyed_mast

   Guyed masts are frequently used for radio masts and towers. The mast can either support radio antennas (for VHF, UHF and other microwave bands) mounted at its top, or the entire structure itself can function as a mast radiator antenna (for VLF, LF, MF). In the latter case, the mast needs to be insulated from the ground. Guyed radio masts are ...